Teotihuacán sits about 50 kilometres northeast of Mexico City, on the bus from Autobuses del Norte or a morning tour. The Avenue of the Dead runs between the Pyramid of the Sun and the Pyramid of the Moon. You can still climb the Moon; the Sun has been closed on and off for conservation. The heat does the rest of the work. This is not a neighbourhood of the capital. It is a city that was already a ruin when the Aztecs found it and gave it a name that means the place where the gods were made.
A city we still cannot fully name
At its peak around the 6th century, Teotihuacán held more than 100,000 people. We do not know what they called themselves. The grid is older than most European capitals. The Sun pyramid is one of the largest structures in the pre-Columbian Americas, a pile of earth and stone aligned to the western horizon. Murals of the Jaguar and the Feathered Serpent survive in the residential compounds. The Avenue is a processional, not a street.
Collapse came in the 7th or 8th century, probably with fire in the ceremonial core. The Aztecs arrived centuries later and treated the ruins as a sacred leftover. Spanish chroniclers wrote down the Aztec names. Archaeology has been peeling those names off ever since, which is why the signage keeps changing and the site still feels unfinished as an explanation.
Why the buses keep coming
Because it is the monumental Mexico that is not a colonial square. Because you can stand on a pyramid within two hours of the Zócalo. Because every schoolbook in the country has this silhouette. It is popular, and it is harsh: little shade, stall food, noon light that photographs badly and burns well. The balloon flights at dawn are a separate industry. They are beautiful and they are not the site.
If you go
Start early. Carry water and a hat. Do the Zócalo on a different day. The Moon climb is the one that still gives you the avenue as a drawing. Leave before the afternoon tour buses fill the spine. This is a half-day with a real archaeological museum at the entrance — use it, or the piles of stone stay piles of stone.
